Creative Grids Double Wedding Ring 17.25" - Set of Four Quilting Ruler Templates CGRDWR Use these 17-1/4 inch templates to cut the segments needed to create a double wedding ring quilt. Mark the fabric through the holes in the template to mark the center of the curved sides to make piecing a breeze. All of the curves can be cut with a 45 or 60mm rotary cutter. Exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts! Comes with fully illustrated step by step instructions or scan the QR Code printed on the ruler to view a video demonstration.